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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A043559 Number of runs in base-7 representation of n.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 2
8 1
9 2
10 2
11 2
12 2
13 2
14 2
15 2
16 1
17 2
18 2
19 2
20 2
21 2
22 2
23 2
24 1
25 2
26 2
27 2
28 2
29 2
30 2
31 2
32 1
33 2
34 2
35 2
36 2
37 2
38 2
39 2
40 1
41 2
42 2
43 2
44 2
45 2
46 2
47 2
48 1
49 2
50 3
51 3
52 3
53 3
54 3
55 3
56 2
57 1
58 2
59 2
60 2
61 2
62 2
63 3
64 3
65 2
66 3
67 3
68 3
69 3
70 3
71 3
72 3
73 2
74 3
75 3
76 3
77 3
78 3
79 3
80 3
81 2
82 3
83 3
84 3
85 3
86 3
87 3
88 3
89 2

List of values

[1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 3, 3, 3, 3, 3, 3, 2, 1, 2, 2, 2, 2, 2, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2]

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